The operative word is "control"

Chet at Vanity Press highlights this story about a deaf man who was tased by police because he couldn't hear their commands.
I noted one aspect of this story that I thought very significant -- the police explained their taser use by saying "The first few minutes getting control of the scene are very, very important."
And that's the key word - " control".
If you look at the recent stories about use and abuse of Tasers, it seems to me that they are not being used anymore just for safety or protection, or to deal with hysterical psychotics, or because police felt endangered. Nope, now they're just being used to control a scene -- the doctrine seems to be, if someone doesn't respond immediately to being yelled at, then tase 'em! That'll teach 'em!